w3resource

Python: Iterate a given list cyclically on specific index position

Python List: Exercise - 181 with Solution

Write a Python program to iterate a given list cyclically at a specific index position.

Sample Solution:

Python Code:

def cyclically_iteration(lst,spec_index):
    result = []
    length = len(lst)
    for i in range(length):
        element_index = spec_index % length
        result.append(lst[element_index])
        spec_index += 1
    return result

chars = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
print("Original list:")
print(chars)
spec_index = 3
print("\nIterate the said  list cyclically on specific index position",spec_index,":")
print(cyclically_iteration(chars,spec_index))
spec_index = 5
print("\nIterate the said  list cyclically on specific index position",spec_index,":")
print(cyclically_iteration(chars,spec_index))

Sample Output:

Original list:
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']

Iterate the said  list cyclically on specific index position 3 :
['d', 'e', 'f', 'g', 'h', 'a', 'b', 'c']

Iterate the said  list cyclically on specific index position 5 :
['f', 'g', 'h', 'a', 'b', 'c', 'd', 'e']

Pictorial Presentation:

Python List: Iterate a given list cyclically on specific index position.

Flowchart:

Flowchart: Iterate a given list cyclically on specific index position.

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:


Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to create the smallest possible number using the elements of a given list of positive integers.
Next: Write a Python program to calculate the maximum and minimum sum of a sublist in a given list of lists.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.

Python: Tips of the Day

Given a predicate function, fn, and a prop string, this curried function will then take an object to inspect by calling the property and passing it to the predicate:

Example:

def tips_check_prop(fn, prop):
  return lambda obj: fn(obj[prop])
check_age = tips_check_prop(lambda x: x >= 25, 'age')
user = {'name': 'Owen', 'age': 25}

print(check_age(user))

Output:

True 

 





We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook